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Primary Reference Standard

When precision matters most, start with the highest benchmark—Primary Reference Standards from Lancetech Ltd are essential for achieving traceable and reproducible results in analytical testing. These ultra-pure substances serve as the definitive reference point for calibrating instruments, verifying methods, and producing secondary standards.


Ideal for pharmaceutical, environmental, and chemical laboratories, our primary standards ensure compliance with global regulatory requirements and support accurate quantification across a wide range of applications. Each standard is backed by detailed documentation and traceability to certified bodies, ensuring your data integrity from the first measurement onward.


Explore our range of primary reference materials and set a solid foundation for your lab’s analytical success.

Aquastatin A 0.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A213-0.5MG
Aquastatin A 0.5 mg CAS number 153821-50-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Aquastatin A 2.5 mg
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Manufacturer: TOKU-E Item Number: A213-2.5MG
Aquastatin A 2.5 mg CAS number 153821-50-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£627.63 £697.37
Aranciamycin A 0.5 mg
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Manufacturer: TOKU-E Item Number: A214-0.5MG
Aranciamycin A 0.5 mg CAS number 960622-70-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£210.49 £233.88
Aranciamycin A 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A214-2.5MG
Aranciamycin A 2.5 mg CAS number 960622-70-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£733.60 £815.11
Arbekacin Sulfate 10 mg
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Manufacturer: TOKU-E Item Number: A022-10MG
Arbekacin Sulfate 10 mg CAS number 104931-87-5 and purity >95.0%...
Price excludes taxes and shipping charges. Save -10%
£213.38 £237.09
Argatroban 100mg
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Manufacturer: TOKU-E Item Number: A171-100MG
Argatroban 100mg CAS number 74863-84-6 and purity (On Dried Basis): ≥98%...
Price excludes taxes and shipping charges. Save -10%
£552.97 £614.41
Argatroban 10mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A171-10MG
Argatroban 10mg CAS number 74863-84-6 and purity (On Dried Basis): ≥98%...
Price excludes taxes and shipping charges. Save -10%
£98.26 £109.18
Artemisin 1 mg
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Manufacturer: TOKU-E Item Number: A215-1MG
Artemisin 1 mg CAS number 63968-64-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£52.02 £57.80
Artemisin 5 mg
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Manufacturer: TOKU-E Item Number: A215-5MG
Artemisin 5 mg CAS number 63968-64-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£177.26 £196.95
Artemisinin 100 mg
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Manufacturer: TOKU-E Item Number: A098-100MG
Artemisinin 100 mg CAS number 63968-64-9 and purity 98.0% - 102.0%...
Price excludes taxes and shipping charges. Save -10%
£55.87 £62.08
Artesunate 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A096-100MG
Artesunate 100 mg CAS number 88495-63-0 and purity (HPLC On Dried Basis): 98.0% - 102.0%...
Price excludes taxes and shipping charges. Save -10%
£101.64 £112.93
Artesunate 500 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A096-500MG
Artesunate 500 mg CAS number 88495-63-0 and purity (HPLC On Dried Basis): 98.0% - 102.0%...
Price excludes taxes and shipping charges. Save -10%
£348.73 £387.48
Ascochin 0.5 mg
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Manufacturer: TOKU-E Item Number: A216-0.5MG
Ascochin 0.5 mg CAS number 935699-58-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£149.81 £166.45
Ascochin 2.5 mg
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Manufacturer: TOKU-E Item Number: A216-2.5MG
Ascochin 2.5 mg CAS number 935699-58-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£523.11 £581.23
Ascochlorin 0.5 mg
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Manufacturer: TOKU-E Item Number: A105-0.5MG
Ascochlorin 0.5 mg CAS number 26166-39-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£272.63 £302.92
Ascochlorin 2.5 mg
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Manufacturer: TOKU-E Item Number: A105-2.5MG
Ascochlorin 2.5 mg CAS number 26166-39-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£949.87 £1,055.41
Ascomycin 100 mg
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Manufacturer: TOKU-E Item Number: A015-100MG
Ascomycin 100 mg CAS number 104987-12-4 and purity (HPLC): ≥95.0%...
Price excludes taxes and shipping charges. Save -10%
£166.18 £184.64
Aspartocin D 1 mg
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Manufacturer: TOKU-E Item Number: A131-1MG
Aspartocin D 1 mg CAS number nan and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£230.72 £256.36
Aspartocin D 5 mg
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Manufacturer: TOKU-E Item Number: A131-5MG
Aspartocin D 5 mg CAS number nan and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£805.85 £895.39
Aspercolorin 1 mg
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Manufacturer: TOKU-E Item Number: A149-1MG
Aspercolorin 1 mg CAS number 29123-52-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£184.97 £205.52
Aspercolorin 5 mg
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Manufacturer: TOKU-E Item Number: A149-5MG
Aspercolorin 5 mg CAS number 29123-52-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£645.93 £717.70
Asperfuran 0.5 mg
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Manufacturer: TOKU-E Item Number: A186-0.5MG
Asperfuran 0.5 mg CAS number 129277-10-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Asperfuran 2.5 mg
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Manufacturer: TOKU-E Item Number: A186-2.5MG
Asperfuran 2.5 mg CAS number 129277-10-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£627.63 £697.37
Aspergillin PZ 0.1 mg
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Manufacturer: TOKU-E Item Number: A217-0.1MG
Aspergillin PZ 0.1 mg CAS number 483305-08-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£149.81 £166.45
Aspergillin PZ 0.5 mg
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Manufacturer: TOKU-E Item Number: A217-0.5MG
Aspergillin PZ 0.5 mg CAS number 483305-08-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£523.11 £581.23
Asperuloside 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A182-1MG
Asperuloside 1 mg CAS number 14259-45-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£200.38 £222.64
Asperuloside 5 mg
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Manufacturer: TOKU-E Item Number: A182-5MG
Asperuloside 5 mg CAS number 14259-45-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£696.02 £773.36
Aspulvinone O 1 mg
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Manufacturer: TOKU-E Item Number: A185-1MG
Aspulvinone O 1 mg CAS number 914071-54-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£210.49 £233.88
Aspulvinone O 5 mg
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Manufacturer: TOKU-E Item Number: A185-5MG
Aspulvinone O 5 mg CAS number 914071-54-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£733.60 £815.11
Aspyrone 0.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A218-0.5MG
Aspyrone 0.5 mg CAS number 17398-00-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£149.81 £166.45
Aspyrone 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A218-2.5MG
Aspyrone 2.5 mg CAS number 17398-00-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£523.11 £581.23
Asterric Acid 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A132-1MG
Asterric Acid 1 mg CAS number 577-64-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£221.57 £246.19
Asterric Acid 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A132-5MG
Asterric Acid 5 mg CAS number 577-64-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£771.65 £857.39
Asukamycin 0.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A133-0.5MG
Asukamycin 0.5 mg CAS number 61116-33-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£255.29 £283.66
Asukamycin 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A133-2.5MG
Asukamycin 2.5 mg CAS number 61116-33-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£891.11 £990.12
Asunaprevir 10 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A108-10MG
Asunaprevir 10 mg CAS number 630420-16-5 and purity 98.0% - 102.0%...
Price excludes taxes and shipping charges. Save -10%
£305.87 £339.85
Asunaprevir 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A108-25MG
Asunaprevir 25 mg CAS number 630420-16-5 and purity 98.0% - 102.0%...
Price excludes taxes and shipping charges. Save -10%
£610.29 £678.10
Aszonapyrone A 0.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A184-0.5MG
Aszonapyrone A 0.5 mg CAS number 83103-08-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Aszonapyrone A 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A184-2.5MG
Aszonapyrone A 2.5 mg CAS number 83103-08-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£627.63 £697.37
Atovaquone 10 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A099-10MG
Atovaquone 10 mg CAS number 95233-18-4 and purity (HPLC): 97.5% - 101.5%...
Price excludes taxes and shipping charges. Save -10%
£64.55 £71.72
Atovaquone 50 mg
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Manufacturer: TOKU-E Item Number: A099-50MG
Atovaquone 50 mg CAS number 95233-18-4 and purity (HPLC): 97.5% - 101.5%...
Price excludes taxes and shipping charges. Save -10%
£273.11 £303.46
Atranorin 0.1 mg
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Manufacturer: TOKU-E Item Number: A219-0.1MG
Atranorin 0.1 mg CAS number 479-20-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£149.81 £166.45
Atranorin 0.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A219-0.5MG
Atranorin 0.5 mg CAS number 479-20-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£523.11 £581.23
Atrazine 250 mg
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Manufacturer: TOKU-E Item Number: A142-250MG
Atrazine 250 mg CAS number 1912-24-9 and purity ≥95.0%...
Price excludes taxes and shipping charges. Save -10%
£39.02 £43.35
Atrazine 500 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A142-500MG
Atrazine 500 mg CAS number 1912-24-9 and purity ≥95.0%...
Price excludes taxes and shipping charges. Save -10%
£63.59 £70.65
Aureonitol 0.1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A016-0.1MG
Aureonitol 0.1 mg CAS number 71774-51-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£149.81 £166.45
Aureonitol 0.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A016-0.5MG
Aureonitol 0.5 mg CAS number 71774-51-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£523.11 £581.23
Aureothin 0.5 mg
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Manufacturer: TOKU-E Item Number: A134-0.5MG
Aureothin 0.5 mg CAS number 2825-00-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£308.75 £343.06
Aureothin 2.5 mg
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Manufacturer: TOKU-E Item Number: A134-2.5MG
Aureothin 2.5 mg CAS number 2825-00-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£1,078.97 £1,198.85
Aureothricin 0.5 mg
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Manufacturer: TOKU-E Item Number: A135-0.5MG
Aureothricin 0.5 mg CAS number 574-95-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£184.97 £205.52
Aureothricin 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: A135-2.5MG
Aureothricin 2.5 mg CAS number 574-95-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£645.93 £717.70
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